• Buffalox@lemmy.world
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    2 hours ago

    The brain renewal concept could have applications such as treating stroke victims

    If this can restore functions to stroke victims again, it’s absolutely amazing.
    If this is vastly successful which remains to be seen, there might be a path format to the longevity part of the idea.

  • bufalo1973@lemmy.ml
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    5 hours ago

    This is the correct way IMO. “Uploading” your mind to a computer is making a clone/copy, but the original dies the same.

    • metallic_z3r0@infosec.pub
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      4 hours ago

      Maintaining continuity of consciousness is the only thing that would make me feel comfortable with converting myself to a machine intelligence.

      • very_well_lost@lemmy.world
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        3 hours ago

        I hate to break it to you, but our meat brains don’t even have continuity of consciousness. We become unconscious all the time. The only real constant is the “hardware” our consciousness emerges from, but even that is always changing.

        • Mossy Feathers (They/Them)@pawb.social
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          2 hours ago

          Except our brains are still functioning. If they didn’t keep functioning, we’d be brain dead. The point is that there’s a common thread that connects every waking moment together.

    • MeekerThanBeaker@lemmy.world
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      4 hours ago

      I think the only way we know it is us for sure is if we are conscious in both the original and clone at the same time. Like… okay… I know this is me in the new brain, I’ll shut down the other one.

      • Arthur Besse@lemmy.ml
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        4 hours ago

        Like… okay… I know this is me in the new brain, I’ll shut down the other one.

        the other one: i’m pretty sure you’ve got it backwards, pal

        • MeekerThanBeaker@lemmy.world
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          4 hours ago

          No, no… you misunderstood. We’re just taking a trip to the brain farm up north. You’ll be able to think with the other brains up there. It’ll be fun.

    • nul9o9@lemmy.world
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      3 hours ago

      I agree.

      But here is an interesting thing to think about:

      What is the perceived difference between falling asleep and waking up the next day, vs going to sleep and copying your consciousness to a machine/new body.

          • Mossy Feathers (They/Them)@pawb.social
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            26 minutes ago

            Probably. If you’ve ever been under anesthesia then you’ve probably noticed the difference between sleeping under anesthesia and sleeping under normal conditions. Personally, I normally get the feeling that time has passed when I sleep, I didn’t have that feeling when I had my wisdom teeth removed; and anesthesia still doesn’t turn your brain all the way off. I’m pretty sure if your brain actually turned off all the way and then turned back on again, then you’d probably feel like you’re a different person.

      • tabular@lemmy.world
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        15 minutes ago

        Some sleep is conscious (dreaming) but they’re easily forgotten. Perhaps being unconscious still always has a grain of consciousness (but is just forgotten).

        It seems there is a grain of reduced experience while sleeping. Copying seems to imply it’s always a clone (a different ego, a different person).

  • jpreston2005@lemmy.world
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    4 hours ago

    There are two reasons he believes the neocortex could be replaced, albeit only slowly. The first is evidence from rare cases of benign brain tumors, like a man described in the medical literature who developed a growth the size of an orange. Yet because it grew very slowly, the man’s brain was able to adjust, shifting memories elsewhere, and his behavior and speech never seemed to change—even when the tumor was removed.

    That’s proof, Hébert thinks, that replacing the neocortex little by little could be achieved “without losing the information encoded in it” such as a person’s self-identity.

    The second source of hope, he says, is experiments showing that fetal-stage cells can survive, and even function, when transplanted into the brains of adults. For instance, medical tests underway are showing that young neurons can integrate into the brains of people who have epilepsy and stop their seizures.

    “It was these two things together—the plastic nature of brains and the ability to add new tissue—that, to me, were like, ‘Ah, now there has got to be a way,’” says Hébert.

    Very interesting. I’ve also seen research suggesting that the application of stem cells to damaged neural tissue within the spinal cord could repair it, so the idea that you could use a similar approach to actual brain health isn’t such a big leap. But still, wow. I wonder how long it would take for the immature cells to develop into “adult mode” that’s fully integrated into the patients cortex. In order to replace the entire brain, you’d have to do it in like, 8 parts, with years of recovery time in between each surgery. Also there would exist the potential for the new cells to develop into like, a second, smaller brain, if the connections sour or if the new material isn’t stimulated the “right” way.

  • icerunner_origin@startrek.website
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    4 hours ago

    I am not renting my corporeal existence from a megacorporation. There is no way this is ever affordable to the masses without some pretty huge caveats

  • ashok36@lemmy.world
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    3 hours ago

    No. Absolutely not. Whenever anyone says, “wouldn’t it be great to live forever” remember that means people like trump and Musk are with us forever. Unless people take things into their own hands, but that’s another issue.

    • cm0002@lemmy.world
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      1 hour ago

      means people like trump and Musk are with us forever.

      But that would also mean their polar opposites would also be with us forever, the objectively best of us

  • Papanca@lemmy.world
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    4 hours ago

    Yes, because who wouldn’t want to live for centuries amidst floods, fire, raging mad politicians and greedy billionaires…

    • nforminvasion@lemmy.world
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      3 hours ago

      Well this really exists for those billionaires and rulers. This isn’t for the common person.

      They’re so mad that they’ve removed themselves so far from us and we still share a common experience in death. That’s unfair for them to have to be associated with peasants in such a debasing way. So now they’ll remind us that death is for the poor or at least not living centuries will be for poor.